and if the sheriff's office does so, it would be the first in california. >> you'll be able to see what the drone is seeing as it's flying. >> reporter: at four pounds and four feet wide, this drone gets a bird's-eye view that officers on the ground are often blind to. >> it can save lives. >> reporter: in this demonstration in dub lick, it's a man standing in the shadows on a roof top with explosives in his reach. >> near priceless. it's valuable to any officer, as you're setting up your perimeters and knowing what the suspect may have in his hands, how the suspect is dressed, what are the avs of escape. >> reporter: the sheriff says his office would only use them during emergencies. >> pursuing a suspect on foot or pursuing a vehicle in an area or search and rescue or disaster. >> reporter: and for proactive policing like catching marijuana fields on public lands. >> they do have infrared capacity. you would be able to see what the drone is seeing as it's flying. >> reporter: but not everyone is a fan. the aclu only wants them deployed when there's a warrant. >> reporter: but the sher